Powerstar uninterruptible power supplies (UPS) have become a valuable and important addition to  ships all over the world. Major cruise lines,such as Princess cruise lines, the US Navy, and US-allied navies equip their power systems with Powerstar UPS equipment. Many of our UPS employ isolation transformers that protect sailors from shock injuries. The isolation transformer also prevents electromagnetic interference from affecting lines. These isolation transformers are invaluable when it comes to protecting sailors on ships gleaming.  major shipbuilders like BIW,LMCO,HIINewport Pascagoula, USCG true online and line interactive ups isotran with powerchute or miltilink shutdown.